System of electrical distribution.



Patented Feb. 4, I902.

E. B. w. REICHEL.

SYSTEM OF ELECTRICAL DISTRIBUTION.

(Application filed. Oct. 2, 1899.)

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UNITED STATES PATENT Orrrcs.

EMIL BERTI-IOLD WALTER REIOHEL, OF STEGLITZ, GERMANY; ASSIGNOR TO THE SIEMENS & HALSKE ELECTRIC COMPANY OEAMERICA, OF- CHICAGO, ILLINOIS,A CORPORATION OF ILLINOIS;

SYSTEM OF ELECTRICAL DISTRIBUTION.

SPECIFICATION forming partof Letters Patent No. 692,348, dated February 4, 1902.

- Application filed October 2, 1899.

To all whom it may concern:

Be'it known that I, EMIL BERTHOLD WAL- 'IER REIOHEL, asubjec-t of the German Emperor, residing at-S teglitz, near Berlin, Germany, have invented a certain new and usefullmprovementin Systems of Electrical Distribution, (Case No. 24:2,)01? which the following is a full, clear, concise, and exact description', reference being bad to the accom- IO panying drawings, forming a part of this specification.

My invention relates to systems of elec-' trical distribution in which the load may vary within wide limits, and has for its ebject the provision of means for preventing the translating devices from all beingsupplied with current at the same time when the output of the generator is required for the operation of certain of the translating devices. v

My invention is of particular utility in connectionwith those systems whereintranslating'means is employed requiring current of widely-varying values in connection with other translating means requiring current of substantially uniform value, which latter translating meansis bymeans of the invention thrown out of circuit when the aforesaid translating means receives or should re- 0 ceive the supply of current that would not be received thereby it the latter translating means were at the same time in circuit.

It will be apparent to those skilled in the art that a variety of apparatus and'arrange- 3 5 ments of circuits might be devised for securing this control of translating devices, and while I have herein shown and will describe a precise embodiment of the invention I wish it to be understood that I do not limit myself 40 to the precise system shown, except in certain of the claims.

I will explain one embodiment of my invention which I preferably employ in practice in connection with the accompanying drawing, illustrating an electric motor -car with apparatus of my invention carried thereby. V A I The invention is not to be limited to its use in connection with electric-railway sys- Serial No. 732,335. (No model.)

tems, as it is capable of having a number of other important applications.

I have shown a generator of electricitya having one of its terminals connected with a trolley-conductor b and the other with electrically-continuous rails 0, upon which the 55.

car d is adapted to travel. A trolley e is adapted to make contact with the trolleyconductor and to convey current to the controller f; which regulates the supply ot'cnrrent'through the operating-motor g of the car, current through the motor finding circuit back to the generator by way of'the wheels h of the car and the track 0. I include in this instance the coil of a solenoid '5 in. the conductor leading from the controller to the motor. The core it of the solenoid supports a roller Z, adapted to ride upon one end of an intermediately-pivoted arm m. The

other end of this arm supports a contact at and an adjustable weight 0, which is provided for the purpose of counter-balancing the core ofthesolenoid. Thecontactpartnisadapted to make connection with a terminal contact p, in this instance constituting the terminal of a pair of heating-coils q q, provided for the purpose of heating the car. The other terminal of the heating-coils is grounded or connected with the tracks through the agency of the car-wheels and is thereby connected with one terminal of the generator a. The other terminal of the generator is connected with the translating devices when the parts at and p are in contact through the agency of the conductorr, connecting the contact n with the conductor 5, leading to the solenoid and mo- 8 5 tor. In the particular instance shown the translating means q is included in a circuit parallel to that including the solenoid or operating magnet t' and the operating-motor g.

The current supplied to the motor must vary 9o within wide limits, and in accordance with the invention when the motor is supplied with current above a given value the helix of the operating-magnetz' is energized, the core is is attracted, and the contact parts n and 19 sep 5 arated, so that all of the current will be supplied to the motor. This operation of the apparatus may occur, for example, when the car is started from a state of rest. After the car has reached a certain speed a less amount of current will flow through the motor and the helix of the operating-magnet, the magnet thereby becoming sufficiently denergized to permit the weight 0 to withdraw the core of the solenoid, and thereby to effect reengagement between the parts 01 and p to restore the circuit through the translating devices q. I provide a stirrup 25, which limits the descent of the core of the solenoid.

While the operation of the controlling apparatus in the instance shown is effected by a change in the volume of current, it is obvious that the operation might be effected upon a change in the potential of the current. I do not wish to be limited to the parallel arrangement of the conductors, including the motor and the translating devices, nor to the nature of the translating devices.

Having thus particularly described my invention, I claim as new and desire to secure by Letters Patent 1. In a system of electric traction, the combination with a source of current, of a vehi- (-le, a motor for propelling the same, a heating-winding, a circuit including the motor supplied with current from said source, a man ually-operated controller for varying the amount of current supplied to the motor, a second circuit including the heating-winding also supplied with current from said source, and means responsive to apredeternlined increase of current through the motor for depriving the heating-winding of current, and for giving said winding current upon a decrease of current through the motor, substantially as described.

2. In a system of electric traction, the combination with a source of current, of a vehicle, a motor for propelling the same, a heating-winding, a circuit including the motor supplied with current from said source, a manually-operated controller for varying the amount of current supplied to the motor, a second circuit including the heating-winding also supplied with current from said source,

means responsive to a predetermined increase of current through the motor for depriving the heating-winding of current, and for giving said winding current upon a decrease of current through the motor, and a trolley carried by the vehicle for engaging a conductor leading from the source of electricity and supplying current to the motor.

3. In a system of electric traction, the combination with a source of current, of a vehicle, a motor for propelling the same, a heating-winding, a circuit including the motor supplied with current from said source, a controller for varying the amount of current supplied to the motor, a second circuit including the heating-winding also supplied with current from said source, and means responsive to a predetermined increase of current through the motor for depriving the heating-winding of current, and for giving said winding current upon a decrease of current through the motor, substantially as described.

4. In a system of electric traction, the combination with a source of current, of a vehicle, a motor for propelling the same, a heating-winding, a circuit including the motor supplied with current from said source, a controller for varying the amount of current supplied to the motor, a second circuit including the heating-Winding also supplied with current from said source, means responsive to a predetermined increase of current through the motor fol-depriving the heating-Winding of current, and for giving said winding current upon a decrease of current through the motor, and a trolley carried by the vehicle for engaging a conductor leading from the source of electricity and supplying current to the motor.

In witness whereof I hereunto subscribe my name this 15th day of August, A. D. 1899.

EMIL BER'IHOLD WALTER llIllCllEh.

Witnesses:

WILLIAM MAYNER, HENRY HAsPER. 

